Expansion of Product_{m>=1} (1+m*q^m)^-31.

Terms

a(0) =1a(1) =-31a(2) =434a(3) =-3627a(4) =20367a(5) =-84537a(6) =296825a(7) =-1027805a(8) =3586700a(9) =-11522204a(10) =33703882a(11) =-97807604a(12) =289043659a(13) =-814257997a(14) =2164448117a(15) =-5763699428a(16) =15479115951a(17) =-40058137473a(18) =100379076723a(19) =-252617470522a(20) =633832842041